N. Rajaram in his article in The Hindu says that philology (a
discipline devoted to the reconstruction of history and culture based
on the comparative study of ancient languages such as Sanskrit, Greek,
Latin and others.) was used as the main tool in writing Indian
History, which gave you the Aryan Invasion Theory. He says that we
should use various other techniques such as Geo-Archeology and not
take the opinion of philologists as the final word.
The point for this
The Rigveda gives great importance to a river known as the Sarasvati. While the Ganga receives only one mention, the Sarasvati is mentioned at least 60 times. There is now no river answering to this description. This led scholars to dismiss it as the imagination of poets. This is still the position of some scholars who insist that philology must have the final say in any debate. More to the point, beginning in 1978, evidence for the Sarasvati became available in the form of satellite images acquired by earth-sensing satellites launched by NASA (National Aeronautics and Space Administration) and ISRO (Indian Space Research Organisation). These images showed traces of paleo-channels that lay along the course of the Sarasvati river described in the ancient literature. They showed an ancient river channel ranging in width from 6 to 8 kilometres, exceeding 14 kilometres in places.Another science that led to some discoveries in Dwaraka was Marine Archeology. This led to the discovery of pottery and a mudra which was dated to 1530 BC. Marine Archeology has also been used to find Harappan like ruins in the Gulf of Cambay.